In his role, Charles will be responsible for aligning operations and technology functions across the wealth management businesses.
Prior to Old Mutual, Charles was acting as COO of Thames River Capital and Foreign & Colonial, said the fund manager.
Charles will report to Old Mutual Wealth Management chief executive Paul Feeney and will help to manage the fund house.
Feeney said, "The strength of the businesses within Old Mutual Wealth Management provides a great opportunity to build high quality investment solutions for financial advisers and customers."
"In order to do that we need a strong and efficient operational platform and I am delighted to welcome someone of the calibre of Jeremy to the business to lead that development," Feeney said.